Our research works achieved with my colleagues from Geoscience & Remote Sensing (GRS) – TU Delft, and KNMI, before my leaving, will be presented via a poster at EGU 2018. In particular, recent findings and the last publication on the retrieval of aerosol layer height (ALH) from the OMI 477 nm O2-O2 band and using the developed neural network algorithm will be shown